[Issue 9417] New: "no size yet for forward reference" error with nested structure

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9417

           Summary: "no size yet for forward reference" error with nested
                    structure
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: maximzms at gmail.com


--- Comment #0 from Maksim Zholudev <maximzms at gmail.com> 2013-01-28 09:54:56 PST ---
Code:
--------------------
mixin template Foo()
{
    void foo() {}
}

void main()
{
    struct B
    {
        mixin Foo;
    }
}
--------------------

Compiler output:
--------------------
test.d(9): Error: struct test.main.B no size yet for forward reference
test.d(10): Error: mixin test.main.B.Foo!() error instantiating
--------------------

Observations:
- This error appears only with DMD from Git head, no error with v2.060.
- No error if the structure is placed outside main()
- No error if template has no function inside
- The same error appears if structure is placed inside a unittest block
- No error if the structure is placed inside other structure or class

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